States that have adopted Safe Storage Laws that impose Criminal Penalties on Adults whose guns are obtained by juveniles and used improperly (use of approved gun locks constitute a defense against such charges)

Since the first news search was done additional news stories have been
added to Nexis:

There are thus now 218 unique stories, and a total of 294 stories counting
duplicates (the stories in yellow were duplicates): Excel file for
general overview and specific stories. Explicit mentions of defensive gun use
increase from 2 to 3 now.